Choose the correct answer from the list below. Not all of the answers will be used.
-An RNA molecule that is catalytic is called a(n) ______________.

A)poly(A) tail
B)methylation
C)alternative splicing
D)spliceosome
E)U2 and U6
F)U4, U5, and U6
G)spliced
H)translation
I)RNA editing
J)GU
K)ribozyme
L)RNA polymerase I
M)ATP